Great! This time of year you shouldn't need to feed them unless this darn cold keeps going. Or feed them lightly. We had our first nuc swarm fed them too much. No clue what we were doing, even after going to training.
We have ours with one 10 frame deep, two mediums for the brood. We use the 10 frames for the honey supers, I have all set up with 9 frame spacers, which you can't use until the frames are built out.
A lot of the time we pull out a frame at a time, if we find a fully capped we pull , extract if we have enough frames to extract, then put it right back to be filled again.
We use oxalic acid to treat for the mites, it is found in honey naturally, plus a lot of veggies.
We were not on top of them when we started, loss a hive or two a winter to mites, even with staying on top of treating we tend to lose a hive every winter. Mites are horrible, they wear the hive down. It is so sad to open the hive and find nothing but dead bees.
I know nothing about top bar hives. Except we are not doing them lol